Chapter 2 Ecosystems

Living in the Environment: Principles, Connections, and Solutions (with CD-ROM and InfoTrac)

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Chapter 2 Ecosystems h MULTIPLE CHOICE 1. The service least likely to be performed by the insect family is a. plant reproduction. b . plant pollination. c. turning the soil. d . chemosynthesis. ANS: D 2The largest numbers of species of organisms on the earth are currently a. microorganisms and fungi. b . amphibians and reptiles. c. insects and fungi. d . insects and microorganisms. ANS: D 3. Biodiversity emerges from a. mutations. b . natural selection. c. extinction. d . all of these answers. ANS: D 4. All physical forms of water (solid, liquid, and gas) make up the a. atmosphere. b . lithosphere. c. biosphere. d . hydrosphere. ANS: D 5. Submarines explore the a. atmosphere. b lithosphere.
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. c. biosphere. d . hydrosphere. ANS: D 6. Life on earth depends on interaction of gravity and a. one-way flow of energy. b . cycling of energy. c. one-way flow of matter. d . the destruction of matter. ANS: A 7. Life of individual organisms is maintained by a. cycling of energy and flow of matter. b . flow of energy and cycling of matter. c. cycling of energy and matter. d . flow of energy and matter. ANS: B 8. Energy a. recycles through the ecosystem. b . flows in only one direction. c. is used over and over again. d . tends to be concentrated by living organisms. ANS: B 9. The energy of the sun is primarily a. nuclear fission. b . nuclear fusion. c. gravity. d . magnetism. ANS: B 10. The most important factor in determining which biome is found in a particular area is
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a. soil type. b
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Chapter 2 Ecosystems - Chapter 2 Ecosystems h MULTIPLE...

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